—DoyouknowthemostancientcityinChina—Xi’anwell?—No，this...

問題詳情：

 —Do you know the most ancient city in China—Xi’an well?

—No，this is the first time I ________ here.

A. had come          B. am coming             C. have come              D. came

【回答】

C

知識點：動詞時態與語態

題型：選擇題